Superplastic deformation of an X7093 Al alloy

Tadić, Srdjan; Sedmak, Aleksandar; Prokić-Cvetković, Radica; Eramah, Abdsalam; Rudolf, Rebeka

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Title:	Superplastic deformation of an X7093 Al alloy
Authors:	ID Tadić, Srdjan (Author) ID Sedmak, Aleksandar (Author) ID Prokić-Cvetković, Radica (Author) ID Eramah, Abdsalam (Author) ID Rudolf, Rebeka (Author) ID Inštitut za kovinske materiale in tehnologije (Copyright holder)
Files:	Materiali_in_Tehnologije_2014_Tadic_et_al._Superplastic_deformation_of_an_X7093_Al_alloy.pdf (580,64 KB) MD5: 824C21F0773BF5950031BD1E66B1308B http://mit.imt.si/Revija/izvodi/mit143/tadic.pdf
Language:	English
Work type:	Scientific work
Typology:	1.01 - Original Scientific Article
Organization:	FS - Faculty of Mechanical Engineering
Abstract:	We have investigated the superplastic deformation mechanism of a powder-metallurgy, high-zinc X7093 Al alloy. The objective was to examine the rate-controlling mechanisms that govern its superplastic deformation. The investigations were carried out in the temperature range 490–524 °C and strain rates of 4.17 × 10–5 s–1 to 2.1 × 10–2 s–1. The maximum ductility was slightly more than 500 % at 524 °C and 4.2 × 10–4 s–1. The values of the stress exponent (n) and the activation energy (Q) indicated that the deformation is rate-controlled by the climb within the grain-boundary diffusion path. The existence of a temperature-dependent threshold stress was confirmed.
Keywords:	superplasticity, Al alloys, deformation mechanisms
Publication status:	Published
Publication version:	Version of Record
Year of publishing:	2014
Number of pages:	str. 321-325
Numbering:	Letn. 48, št. 3
PID:	20.500.12556/DKUM-65238
ISSN:	1580-2949
UDC:	620.172.21:669.715
ISSN on article:	1580-2949
COBISS.SI-ID:	17823254
NUK URN:	URN:SI:UM:DK:FMC5DKES
Publication date in DKUM:	23.03.2017
Views:	1349
Downloads:	89
Metadata:
Categories:	Misc.
:	TADIĆ, Srdjan, SEDMAK, Aleksandar, PROKIĆ-CVETKOVIĆ, Radica, ERAMAH, Abdsalam and RUDOLF, Rebeka, 2014, Superplastic deformation of an X7093 Al alloy. Materiali in tehnologije [online]. 2014. Vol. 48, no. 3, p. 321–325. [Accessed 22 March 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=65238 Copy citation

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Record is a part of a journal

Title:	Materiali in tehnologije
Shortened title:	Mater. tehnol.
Publisher:	Inštitut za kovinske materiale in tehnologije
ISSN:	1580-2949
COBISS.SI-ID:	106193664

Secondary language

Language:	Slovenian
Title:	Superplastična deformacija Al-zlitine X7093
Abstract:	Izvršena je bila študija mehanizma superplastične deformacije Al-zlitine 7093 s cinkom, izdelane po postopku metalurgije prahov. Cilj je bila preiskava mehanizma kontrole hitrosti, ki ureja superplastično deformacijo zlitine. Preiskave so bile izvršene v temperaturnem območju 490–524 °C in hitrostih obremenjevanja 4,17 × 10–5 –2,1×10–2 s–1. Maksimalna duktilnost je bila malo nad 500-odstotna pri 524 °C in 4,2 × 10–4 s–1. Vrednosti napetostnega eksponenta (n) in aktivacijska energija (Q)so pokazale, da je hitrost deformacije kontrolirana s plezanjem po difuzijskih poteh v mejah zrn. Potrjen je tudi obstoj tempera- turno odvisnega praga napetosti.
Keywords:	superplastičnost, aluminijeve zlitine, deformacije, mehanizmi

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